White paper: Tunnel Magnetoresistance Technology for advanced sensor performance

Using TMR technology for precision sensing: advancing magnetic sensor performance

The magnetic sensor market is at a pivotal point. With the increasing demand for precise, energy-efficient, and compact sensing in consumer electronics, automotive, and industrial applications, traditional magnetometer technologies such as Hall Effect, AMR, and GMR are no longer sufficient for the next generation of devices.

Tunnel Magnetoresistance (TMR) is emerging as a disruptive technology, delivering superior sensitivity, significantly lower power consumption, and greater robustness. This white paper explores the evolution of magnetic sensing technologies, highlights the limitations of legacy approaches, and presents TMR as the transformative alternative. We also examine the Bosch Sensortec BMM350 as a real-world implementation of TMR, demonstrating its potential in enabling new applications and elevating performance standards.